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Unlike today’s earthworms, these 1-centimeter fossils, called Uncus dzaugisi, lack any segments and had an outer coat stiff enough to keep them from being completely flattened as sediments accumulated on top of them.

Save the pandas is a more popular slogan than save the earthworms, and most people likely care more about protecting flowers than a rare grass or fungi.

Finally, other animal species, including other mollusks, the common earthworm and even the tadpole stages of frogs, also possess a typhlosole that has not been thoroughly studied before.

The study also examined the impacts of the discs cut from the teabags on a species of earthworm, Eisenia fetida, which has a critical role in soil nutrient turnover as it consumes organic matter.

And it teems with beetles and earthworms and pesky ticks.